Consulting income at Kate Walsh Associates for the period of Feburary-July has been as follows: (income in 1000's) Feb. 70.0 Mar. 68.5 Apr. 64.8 May 71.7 Jun. 71.3 Jul. 72.8 Use exponential smoothing to forcaste Aug. income. Assume that the initial forecast for Feb. is $65,000. The smoothing constant selected is a=0.1 and resolve a=0.3 too. Wuch smooting constant provides better forecast?